I had a mirena iud and still got pregnant so it shouldnt take long and from the medical side of me, it is just your body adjusting to the hormonal change more than likely. Try to massage your breast to 'let down' the pressure and it should help, try applying ice packs and trying to have sex making sure not to let hubby rub on them may help as well. The hormone changes can be hard to deal with at first but I hope you end up pregnant quickly! Good luck.
at 11:42 PM on Jul. 14, 2008